Huijukon Sponge Filters for Aquarium Fish Tank, Up to 30 Gallon Tank (Filter);

Features:
Sponge filters provide both mechanical and biological filtration
Simply install an airline into the unit and provide both aeration and filtration for your fish
Aerobic bacteria colonize the sponge providing a bacterial substance to facilitate the nitrogen cycle
The filter is therefore the best choice for specific application for raising Discus, Angel Fish and other fish
In addition, the sponge traps larger waste particles mechanically cleaning the water without trapping baby fish
They are useful for as breeding filter or as secondary filter
Or they can be used as pre-filtration unit by fitting to an external or a top filter

Package Includes:
1 x Huijukon Sponge Filter for Aquarium Fish Tank